10· Sample Preparation
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SAMPLE PREPARATION GLASSWARE Liquid Chromatography Columns These have a coarse glass frit at the bottom end, and come with or without PTFE stopcock. Also available without frit; please call for information. Description 10 mm ID x 300 mm Glass Column with Frit 10 mm ID x 300 mm Glass Column with Frit and Stopcock 19 mm ID x 400 mm Glass Column with Frit and Stopcock 22 mm ID x 400 mm Glass Column with Frit and Stopcock SOLID PHASE EXTRACTION Liquid Chromatography Column Solid Phase Extraction cartridges from GIBNIK provide fast and efficient sample clean-up and concentration prior to analysis....

Reversed Phase • Rinse packing bed with 3 - 5 mL methanol. Rinse with 3 - 5 mL water or buffer. Do not let packing dry. • Apply sample solution to the top of the packing bed. Push or draw through the bed at 1-5 mL/min. Collect sample for analysis if desired compound has passed through the bed without being retained. • If desired compound was retained, wash off weakly retained interfering compounds with a polar solvent. • Elute desired compound with 1 -2 mL of non-polar solvent and collect for analysis. Normal Phase • Rinse packing bed with 3 - 5 mL of a non-polar solvent. Do not let packing...

Description Alumina A Alumina A, 500 mg/ 3 mL Alumina A, 500 mg/ 6 mL Alumina A, 1000 mg/ 6 mL Alumina B Alumina B, 100 mg/ 1 mL Alumina B, 500 mg/ 3 mL Alumina B, 500 mg/ 6 mL Alumina B, 1000 mg/ 6 mL Alumina N Alumina N, 500 mg/ 3 mL Alumina N, 500 mg/ 6 mL Alumina N, 1000 mg/ 6 mL

Vacuum Manifold SPE Cartridges not included VACUUM MANIFOLDS • 12 and 24-port manifolds • Glass chamber for visual monitoring • Accepts standard male luer devices Vacuum manifolds allow the processing of multiple samples simultaneously. Manifold systems come complete with components shown below. Includes polypropylene needles; stainless steel or PTFE needles are available separately. • Glass chamber • Vacuum valve and gauge • Polypropylene lid • Stopcock valves • Collection rack plates • Support posts for collection racks • Retaining clips for collection racks • Lid legs • Manifold inlet...

MININERT VALVES & REACTION VIALSMininert Valves These are unique push-button PTFE vial closures featuring inertness and syringe access without exposure of the vial contents. When used with a glass vial, only PTFE and glass are in contact with the sample. A silicone rubber gasket above the PTFE valve stem (isolated from the contents) provides a seal for the needle and prevents leakage or exposure of the contents during sampling. Push the green button to open, insert the needle and take sample, withdraw the needle, then push the red button to close. The needle seal septum may be replaced as...

SAMPLE PREPARATION SYRINGE FILTERS, DISPOSABLE SYRINGES Syringe Filters GIBNIK offers a wide range of syringe �lters for most of your sample clean up applications. Filter housings are made from polypropylene and have luer hubs to �t all luer lock syringes. Two membrane materials are available; nylon (hydrophilic) for general �ltration of aqueous samples and many solvents, and PTFE for gases, air virtually all solvents, and highly corrosive acids and bases. PTFE can be used with aqueous samples by pre-wetting with methanol. • 4 mm size - Low sample hold-up; hold up is less than 10 µl. 100/pk...

SAMPLE CONCENTRATION, EVAPORATORS Adjustable Mini-Vap This is a versatile concentrator/evaporator for use with a single container. Adjustable design allows use with any size vessel from mini-vial to 250 mL beaker. It is nickel-plated for resistance to solvents and dilute acids, and comes with instructions. Description Item No. Adjustable Mini-Vap (Single) AUC201001 6-Port Mini-Vap This concentrator/evaporator handles up to six miniature vials or containers simultaneously. It comes with six stainless steel needles, a nickel-plated needle valve, and 3 feet of plastic tubing. The needle...

NEW HAMILTON SOFTGRIPTM PIPETTES • Best overall accuracy and precision • Fully autoclavable • Ergonomic by design • Made in the U.S.A. The new SoftGrip boasts an enlarged ejector button, dual needle volume indicator, slimmer ejector sleeve, redesigned plunger button, and a more stain resistant grip. These modifications have enhanced the functionality of the SoftGrip while maintaining the principles of quality, ergonomics, and functionality that made the SoftGrip popular. Volume Color 5 pl Steel Blue At 100% of Pipette Volume Accuracy Precision within +/- % within +/-% Adjustable...

Hamilton Pipette Accessories AdvanTipTM Non-Filter Tips AdvanTip precision pipette tips for routine high-throughput work where an extensive range of universal tips and multiple packaging options are needed to meet laboratory requirements. Tips include extended length, filter tips, and macrovolume tips. Hamilton pipette tips are universal-fit and deliver outstanding accuracy and precision. AdvanTip products are certified to be free of RNase, DNase and pyrogens. Description Total Tips Item No. AdvanTip Filtered Tips Use filter tips for the ultimate protection against contamination...